Peter



P. F. CAMPBELL.

TOBACCO PIPE. APPLICATION FILED NOV-20.19I8.

1,3 1 0,856, Patented July 2 1919.

W I TNESSES:

-ATTORNEY.

rnran. F. cmrnnnn, or V'INAL MAINE.

TOBACCO-PIPE.

i To all whom it may concern:

Be it known that I, PETER F. CAMPBELL, a. citizen of the United States of America, and a resident of Vinal Haven, in the county of Knox and State of Maine, have invented a new and useful Tobacco-Pipe, of which the following is a specification,

My invention relates to improvements in pipes for smoking tobacco, and resides in outer and inner bowls of peculiar construction, the latter being removable from the can without di culty be cleaned to the best advantage and most thoroughly, so that the same may readily be kept sweet and clean.

A further object is to provide means in such a pipe for keeping the smoke cool, and for preventing the smoke from implngmg directly on the tip of the tongue.

This pipe is simple, compactyconvement, and withal entirely practicable and highly efficient.

Other objects and advantages will appearin the course of the following description.

I attain the objects and secure the advantages of my invention by the means illustrated in the accompanying drawings, in which' Figure 1 is a side elevation of a tobacco ipe which embodies a practlcal form of my invention, showing the same at rest on ahorizontal surface or support; Fig. 2, a central, longitudinal, vertical section through said pipe, its position being about the same as that when the pipe is held to the mouth in the act of smoking; Fig. 3, a top plan of the outer bowl; Fig. 4, a fragment of said bowl, in interior elevation, showing one of the bayonet-joint slots therein; 5, a side elevation of'the inner-bowl sections spaced apart; Fig. 6, a central, vertical section through the bowls, taken on lines H, lookin the direction of the associatedarrow, in Fig. 2; Fig. 7 a central, longitudinal, horl- Specification of Iletters Patent.

is to be understood that more or less change may be made in the shape, size, arrangement,

andconstruction of some or all of the parts, I

without departing from the spirit of said invention or exceeding the scope of what is claimed.

Upon referring to the drawings it will 'be observed that the pipe therein illustrated comprises an outer or exterior bowl 1 provided with a stem 2, and. two sections 3 which make up or constitute an interior or inner bowl, the latter having a plurality of slots 4 in the bottom thereof to form a grate for the tobacco when the pipe is filled. Exceptatthe top the inner bowl is spaced from the outer bowl, to form a smoke chamber 5 around and beneath said inner bowl. On one side'of the bowl 1 at thetop is a projection 6, and the stem 2 is attached to such projection, preferabl in such a manner that said stem can be easi y and quickly'removed and replaced. In the present case there is an extension 7 at the inner terminal of the stem 2, which is of less diameter than the contiguous portion of said stem, and extends through to the inside of the bowl 1.

.The inner end of the extension? is flush with the inside of the bowl 1, and said extension at the other terminal forms a flush joint with the outer end of the projection 6, as clearly shown in Fig. 2. The extension 7 forms a tight fit with the projection 6.' The construction is such that the stem 2 is approximately at right-angles to the axial center of thebowl 1.

A passage 8 extends through the stem 2 from side to side just back of a head 9 at the outer end of said stem, and a longitudinal passage 10 extends clear through said stem, including the extension 7. The outer end of the passage 10, forward of the transverse passage 8, is closed.by a plug 11, which may be tapped into said first-named passage. The passage 10 opens at its inner end into the chamber 5 at the top of said chamher, and at its outer end into the passage 8,

Patented July 22, 1919. Application filed November 20', 1918. Serial No. 268,390.

-The extreme outer end of the stem 2 being closed by the plug 11, smoke from the chamber 5 is drawn through the passages and 8, and enters the mouth through the open 5 ends of said passage 8, in the sides of the mouth-piece of said stem, instead of through the extreme outer end of such mouth-piece, as it does with a pipe as heretofore constructed. The tip of the tongue is thus protected from the smoke, and the discharge is divided and distributed so that the smoke enters the mouth from two directions and in two quite widely separated volumes, resulting in a less intense volume at one point and a consequently more pleasing effect, as well as being diverted from the tipofthe tongue. The bead 9 does not differ from beads commcnly found on pipe stems or mouth-pleces. As a means of affording a stable support for the pipe, when it is placed on a table or stand with the mouths of the bowls uppermost, I provide a boss 12 on the bottom of the'bowl 1, the under surface of which boss isin thesame plane with a line drawn from the underside of said bowl to the undersideor bottom edge of the mouth-piece of the stem, or of the bead 9. Thus, when the pipe is laid down, inthe manner above noted, it rests on the boss 12 and the bottom edge of the bead 9, as illustrated in Fig. 1. This is an advantage when the pipe contains tobacco, which may or may not be lighted or burning, and it is desired to lay aside the pipe, inasmuch as it is not then necessary to dump out the tobacco, as it would be if the pipe .had to be laid down on one side. The stem rest affords additional security which would be absent if the pipe were constructed to 7 rest on the bottom of the bowl 1 alone.

When the inner-bowl sections 3 are in place in the outer bowl 1, they constitute a complete inner bowl, and th1s inner bowl and its functions will next be described in detail.

The slots 4, of which there may 'be four, more or less, are parallel," and they are here arranged two on each side of the plane of cleavage between the two sections 3, and extend at both ends up into the sides of the in- 50 ner bowl, above the bottom of said bowl. The tobacco is received on the grate in the inner bowl formed by the slots 4, and the draft or suction, a plied at the outer end of the stem 2, is tlirough said slots. The 55 inner bowl receives the tobacco and carries or su ports it above the bottom of the bowl 1, an entirely out of contact with the sides of said last-named bowl as well, so that the Smoke drawn down through the slots 4 and arising in the chamber 5, 1s cooled to a considerable extentby the time it reaches the entrance to the passage 10, and more, of course, by the time the smoke arrives at the passage 8. The .--"primary coolin of the smoke is one of the advantages derived from the presence of the inner bowl with slotted bottom. Another advantage is found in the im roved combustion that eventuates. This is ue, not only to the construction generally, but to the fact that no saliva which may find its way into the bowl 1 comes into contact with the tobacco in the inner bowl. Clogging of the entrance to the smoke passages is quite out of the question, and there is practically no danger that the tobaccowill become packed, compressed, or massed in such a manner as to interfere with the draft.

The inner bowl has at the upper end an annular flange 13, which fits over the ,top of the bowl 1, and below said flange an annular part 14, which fits snugly into said top of said bowl 1, said part 14: overhanging that portion of said inner bowl which is below. The bottom or underside of the part 14: forms the top of the chamber 5, and the entrance to the passage 10 is below the same. Protuberances or knobs 15 are provided on the outside of the inner bowl, a short distance above the bottom thereof, to bear against the sides of the bowl 1 for the purpose of supporting said innerbowl at the lower end. There are two of the knobs 15 in the present case, and they are locatcddiametrically opposite to each other.

As a secure and convenient means for looking the inner bowl in place in the outer bowl, I employ bayonet connections or joints. These conslst of two protuberances or knobs 16 on'the part 14 above the knobs 15, and two L-shaped slots 17 in the bowl 1 at the top. The slots 17 are made in the inner surface of the bowl-1 and open through the upper edge of said bowl. The extreme inner ends of the slots 17 are approximately in the central, vertical plane of the inner bowl, which plane is at right-angles to the central, longitudinal, vertical plane of the pipe, when said inner bowl is in place, although this is not of particular importance.

In the act of placing the inner bowl in the outer bowl, the sections 3 are arranged with their plane, vertical edges together, introduced into said outer bowl, taking care to have the knobs 16 enter the vertical branches of the slots 17, and turned to the right to cause said knobs to enter the undercut branches of said slots, which revent said knobs from'rising out of said sihts and said sections or inner bowl from being displaced or becoming disconnected or disengaged accidentally. To remove, the inner bowl, sim

ply turn it to the left until the knobs 16 arrive at the vertical branches of the slots 17, and raise said bowl out of the bowl 1. The flange 13. is grasped during these operations and facilitates the fperformance of the same, and said flange, rthermore, supplements the part 14' in tightl and'securely closing the top of the cham er 5, when the inner bowl is in place.

Preferably the undercut branch of each slot 17 inclines downward slightly, from the vertical branch of said slot to the inner end of said undercut branch, as shown in Fig. 4, to the end that the inner bowl shall be wedged into place, when the same is turned to engage the knobs 16 with the undercut slotted parts of the bowl 1, and a firmer and in a sense more secure interlocking engagement of the members obtained. By tapering I or inclining the undercut branches of the slots 17, means is afforded for forcing the flange 13 down tightly onto the bowl 1, and the knobs 15 tightl v against concave portions of said bowl, an tacts or engagements are obtained at several points.

This pipe is filled, smoked, and emptied in practically the same Way as any other tobacco pipe.

When it is desired to clean the pipe, first remove the inner bowl and the stem 2 and take out the plug 11. Then the interior of the boyvl 1 can be cleaned with the utmost facility; and the passage 10, being now unobstructed at either end, can be cleaned without difliculty, as Well as the passage 8, in the stem 2. And the inner-bowl sections 3, now separated from each other, are in the best possible condition for cleaning, both outside and inside. A thin piece of metal or a stiff card may be used to advantage in cleaning the slots l, and it is to facilitate and insure the thoroughness of such cleaning and enbinding, frictional conhance the operation that I extend said slots above the bottom of the sections 3;

Upon reassembling the parts after cleaning the pipe is again ready for use.

What I claim as my invention, and desire to secure by Letters Patent, is

Y 1. The combination, in a tobacco pipe, with an outer bowl, and a stem, of a removable inner bowl supported in said outer bowl, the bottom of said inner bowl being integral with the sides thereof and having there- 1n parallel slots which extend across and above the same into said sides, and are adapted to have introduced into any one of such slots, throughout the length and including the portions of the slots that are in said sides of said inner bowl, a thin flat object for cleaning purposes, when said inner bowl is removed from said outer bowl.

2. The combination, in a tobacco pipe, with an outer bowl, and a stem, of a removable inner bowl spaced from said outer bowl and divided on an axial plane into independent sections, said sect1ons havin perforated bottoms and enlargements at t e top to close the mouth of said outer bowl, and means to secure said inner bowl sections in place in said outer bowl and release it thererom.

PETER F. CAMPBELL.

Witnesses:

Moses S. CASE, NELLIE E. CASE. 

